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zet809 edited this page Dec 18, 2018 · 20 revisions

Highlighted Functions and Changes in Behavior


Highlighted Functions

xCAT Documentation

xCAT documentation is hosted on ReadTheDocs:

Download xCAT

Test Environment

Hardware Platform and Operating Systems which have been verified:

Hardware Platform Operation System
IBM Power System AC922 RHEL-Alt 7.6
IBM Power S822LC for HPC RHEL 7.6
IBM Power S822LC for HPC Ubuntu 16.04.5
IBM Power S822LC for HPC Ubuntu 18.04.1
IBM Power S822LC for HPC SLES 12 SP3
IBM Power 750 RHEL 7.6
IBM Power 750 RHEL 6.10
IBM Power 750 SLES 11 SP4
iDataPlex M4 DX360 RHEL 7.6
iDataPlex M4 DX360 SLES 12 SP3
iDataPlex M4 DX360 Ubuntu 16.04.5
iDataPlex M4 DX360 Ubuntu 18.04.1

Key Issues Resolved

Issue #5785 Cumulus Switches get wrong master for static management IP address configuration

Issue #5761 lsdef -l -t group hang with 100% CPU in large size cluster

Issue #5755 synclist: EXECUTE{ALWAYS} ignore noderange

Issue #5740 Installing xCAT-genesis-base will remove files provided by xCAT-genesis-scripts

Issue #5734 nodeset failed to put vmlinuz into correct location for ubuntu16.04.5 x86

Issue #5721 xCAT-client rpm seems to depend on xCAT-server

Issue #5712 Kdump can not work correctly in rhels7.6 and rhels7.6-alt

Issue #5644 ./otherpkgs: line 931: /usr/bin/logger: Argument list too long

Issue #5564 restart goconserver after yum update to prevent > Unknown lvalue ‘After’ in section ‘Service’

Issue #5497 add rinstall option to skip rebuilding initrd when osdistroupdate/netdrivers is used

Issue #5209 Unable to find pxelinux.0 when attempting to use nodeset

Restrictions and Known Issues

Issue #5905 makedhcp -n cannot generate right URL in dhcpd.conf file: the patch

Issue #5121 rspconfig failed to set bmc ip etc in some specific condition

Issue #3513 For the latest xCAT-genesis-base, the mlx4_en driver 2.2-1 (Feb 2014) is included, it can not support Mellanox Ethernet NIC that need driver newer than 2.2-1, for more information, please reference build genesis locally with latest RH MN

Issue #5057 This issue cannot be reproduced, and the work around is : check the bmc state use rflash <node> -l, if the target firmware state is Active(+), execute rpower <node> boot to reboot the host and let new firmware take effect.

Issue #3284 While selinux on KVM host was reconfigured from enforcing to disabled, rpower failed to power previous created KVM guest on



  • Oct 22, 2010: xCAT 2.5 released.
  • Apr 30, 2010: xCAT 2.4 is released.
  • Oct 31, 2009: xCAT 2.3 released. xCAT's 10 year anniversary!
  • Apr 16, 2009: xCAT 2.2 released.
  • Oct 31, 2008: xCAT 2.1 released.
  • Sep 12, 2008: Support for xCAT 2 can now be purchased!
  • June 9, 2008: xCAT breaths life into (at the time) the fastest supercomputer on the planet
  • May 30, 2008: xCAT 2.0 for Linux officially released!
  • Oct 31, 2007: IBM open sources xCAT 2.0 to allow collaboration among all of the xCAT users.
  • Oct 31, 1999: xCAT 1.0 is born!
    xCAT started out as a project in IBM developed by Egan Ford. It was quickly adopted by customers and IBM manufacturing sites to rapidly deploy clusters.
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